Books Assigned
Calculus: Early Transcendentals
Chemistry: Structure and Properties
Campbell Biology
Introductory Statistics
Geometry A Common Core Curriculum
Student's Solutions Manual forā¦
Precalculus
Psychology Openstax
Genetics: From Genes to Genomes
Laboratory Exercises inā¦
Give Me Liberty!: An Americanā¦
Religion Matters: What Sociologyā¦
Anthropology: A Global Perspective,ā¦
Viewed Questions
A bacterial species is inoculated on EMB agar. (a) The bacteria do not grow. Why? (b) If the bacteria ferment lactose, what would you expect to see? (c) The bacteria produce clear colonies. Why?
You left a carton of orange juice on your counter for 3 days. When you taste it, it is very bubbly (as though it was carbonated), and it tastes more bitter than usual. (Note: acids taste bitter). What do you think could have happened? (Note: you can't just say that bacteria grew-you must explain how the growth of the bacteria resulted in the changes in the orange juice.)
Why are the washing steps necessary in the ELISA test?
Fill in the blanks: As magnification increases, the area of the field of view _________________, the depth of the field of view _______________________, the working distance __________________, and the amount of light required ____________________.
Questions asked
What is the binding energy (in kJ/mol) for Ag-107? The mass of a hydrogen atom is 1.00783 amu, the mass of a neutron is 1.00867 amu, and the atomic mass of this isotope is 106.90509 amu.
For the galvanic (voltaic) cell Fe(s) + MnĀ²āŗ(aq) ā¶ FeĀ²āŗ(aq) + Mn(s) (EĀ° = 0.77 V at 25 Ā°C), what is [FeĀ²āŗ] if [MnĀ²āŗ] = 0.080 M and E = 0.78 V? Assume T is 298 K
What is EĀ°(cell) for the reaction 2 Au(s) + 3 CaĀ²āŗ(aq) ā 2 AuĀ³āŗ(aq) + 3 Ca(s)? Standard Reduction Potentials Au3+(aq) + 3e- - Au(s) Ca2+(aq) + 2e- - Ca(s) EĀ° (V) +1.50 -2.87
Which of the following represents a process that is never spontaneous? Group of answer choices āH: negative āS: positive āH: negative āS: negative spontaneity is not related to the signs of āH and āS āH: positive āS: positive āH: positive āS: negative
Calculate ĪGrxn at 298 K under the conditions shown below for the following reaction. Do not enter units with your answer N2 (g) + 3 H2 (g) ā 2 NH3 (g) ĪGĀ° = -33.3 kJ P(N2) = 1.5 atm, P(H2) = 4.5atm, P(NH3) = 1.0 atm
The energy term associated with entropy is -TĪS. Using the values for ĪSĀ° (89.3 J/K mol) and ĪHĀ° (-62.8) that you calculated previously, re-enter below the enthalpy change (ĪHĀ°) and -TĪSĀ° for this reaction at 25 Ā°C.
For the reaction 2 A (g) ā B (g), Kp = 0.00499 at 298 K. When āG = 8.35 kJ/mol, what is the partial pressure of B when the partial pressure of A is 2.00 atm for this reaction at 298 K
What is K for a reaction if āGĀ° =-291.6 kJ/mol at 25 Ā°C (or 298 K)? (R = 8.314 J/mol ļ½„ K)
What is the molar solubility of Be(OH)2 in pure water (Ksp = 6.92 Ć 10-22)? answer choices 5.57 Ć 10-8 M 1.22 Ć 10-5 M 7.02 Ć 10-8 M 1.32 Ć 10-11 M 5.16 Ć 10-6 M
Which of the following compounds will be less soluble at higher pH values? (Answer Choices) PbBr2 Mg(OH)2 It cannot be determined from the information given Fe(NO3)2 CuCl